Boost C++ Libraries

// In header: <boost/intrusive/hashtable.hpp>

template<typename SupposedValueTraits> 
struct unordered_bucket_impl {
  // types
  typedef unspecified                                                                                    node_traits;        
  typedef reduced_slist_node_traits< node_traits >::type                                                 reduced_node_traits;
  typedef bucket_impl< reduced_node_traits >                                                             type;               
  typedef pointer_traits< typenamereduced_node_traits::node_ptr >::template rebind_pointer< type >::type pointer;            
};